| Key to the city recipient | 25 |
| Key to the city recipient, maybe | 32 |
| Key to the left | 15 |
| Key to the left of F1 | 21 |
| Key to the puzzle's theme | 29 |
| Key to the world | 16 |
| Key to this puzzle's theme, in English | 42 |
| Key to unlocking this puzzle's theme | 40 |
| Key to which most clarinets are tuned | 37 |
| Key training personnel | 22 |
| Key under Shift | 15 |
| Key under the B | 15 |
| Key under Z and X | 17 |
| Key underling | 13 |
| Key used in combinations | 24 |
| Key used in conjunction with control and delete | 47 |
| Key used in PC combinations | 27 |
| Key used in shortcuts | 21 |
| Key used in some shortcuts | 26 |
| Key used to close a window, perhaps | 35 |
| Key used to make change | 23 |
| Key used with Ctrl and Del to reboot | 36 |
| Key using a piano's white keys only | 39 |
| Key using all five black keys in its scale: Abbr. | 49 |
| Key using all the black keys: Abbr. | 35 |
| Key visibility aid? | 19 |
| Key watched o'er them | 25 |
| Key Watergate evidence | 22 |
| Key Watergate figure | 20 |
| Key Watergate figure Sam | 24 |
| Key weapon at Battle or Crecy | 29 |
| Key West and Honshu | 19 |
| Key West cocktail | 17 |
| Key West fare | 13 |
| Key West seafood | 16 |
| Key West, for one | 17 |
| Key West, for Truman | 20 |
| Key West-to-Fort Kent hwy. | 26 |
| Key who draws "Hazel" | 31 |
| Key Wimbledon matches | 21 |
| Key with 3 flats | 16 |
| Key with a "#" on it | 30 |
| Key with a beach | 16 |
| Key with a left-pointing arrow | 30 |
| Key with all white notes | 24 |
| Key with Alt and Del | 20 |
| Key with an arrow | 17 |
| Key with Ctrl and Delete in a computer operation | 48 |
| Key with five sharps: Abbr. | 27 |
| Key with four flats | 19 |
| Key with four sharps | 20 |
| Key with four sharps (abbr.) | 28 |
| Key with four sharps, for short | 31 |
| Key with four sharps: Abbr. | 27 |
| Key with no black keys | 22 |
| Key with no flats or sharps: Abbr. | 34 |
| Key with no sharps or flats | 27 |
| Key with no sharps or flats: Abbr. | 34 |
| Key with one flat | 17 |
| Key with one sharp | 18 |
| Key with one sharp, briefly | 27 |
| Key with three sharps | 21 |
| Key with three sharps: Abbr. | 28 |
| Key with two flats | 18 |
| Key with two sharps | 19 |
| Key with two sharps (abbr.) | 27 |
| Key with two sharps: Abbr. | 26 |
| Key wood | 8 |
| Key word | 8 |
| Key word in a gag from the "Borat" movie | 50 |
| Key word in direct mail | 23 |
| Key word in Nixon's infamous line | 37 |
| Key words | 9 |
| Key words in a pregame ceremony? | 32 |
| Key words? | 10 |
| Key work | 8 |
| Key work? | 9 |
| Key __ | 6 |
| Key __ pie | 10 |
| Key __, FL | 10 |
| Key ___ | 7 |
| Key ___ (Floridian isle) | 24 |
| Key ___ (Tonto's islet range?) | 34 |
| Key ___ pie | 11 |
| Key ___, Fla. | 13 |
| Key ____ | 8 |
| Key's "above" | 27 |
| Key's comedy partner | 24 |
| Key's contents | 18 |
| Key's cousin | 16 |
| Key's little cousin | 23 |
| Key's middle name | 21 |
| Key's opener? | 17 |
| Key's partner on a Comedy Central show | 42 |
| Key's went national | 23 |
| Key, as a Kia | 13 |
| Key, e.g. | 9 |
| Key, for example | 16 |
| Key, for one | 12 |
| Key, in Cannes | 14 |